<template>
  <view class="container">
    <view class="carousel">
      <swiper indicator-dots circular="true" duration="400">
        <swiper-item class="swiper-item" v-for="(item, index) in goods.slider_image" :key="index">
          <view class="image-wrapper">
            <image :src="item" class="loaded" mode="aspectFill"></image>
          </view>
        </swiper-item>
      </swiper>
    </view>

    <view class="introduce-section">
      <text class="title">{{ goods.name }}</text>
      <view class="price-box">
        <text class="price-tip">¥</text>
        <text class="price">{{ curSelectSku.price }}</text>
        <text class="m-price">¥{{ curSelectSku.original_price }}</text>
        <!-- <text class="coupon-tip">7折</text> -->
      </view>
      <view class="bot-row">
        <text>销量: {{ curSelectSku.sales }}</text>
        <text v-if="curSelectSku.stock <= 20">库存: {{ curSelectSku.stock }}</text>
        <!-- <text>浏览量: {{ curSelectSku.original_price }}</text> -->
      </view>
    </view>

    <!--  分享 -->
    <view class="share-section" @click="share">
      <view class="share-icon">
        <text class="yticon icon-xingxing"></text>
        返
      </view>
      <text class="tit">该商品分享可领49减10红包</text>
      <text class="yticon icon-bangzhu1"></text>
      <view class="share-btn">
        立即分享
        <text class="yticon icon-you"></text>
      </view>
    </view>

    <view class="c-list">
      <view class="c-row b-b" @click="toggleSpec" v-if="goods.spec == 2">
        <text class="tit">选择规格</text>
        <view class="con">
          <text class="selected-text" v-for="(sItem, sIndex) in specSelected" :key="sIndex">
            {{ sItem.name }}
          </text>
        </view>
        <text class="yticon icon-you"></text>
      </view>
      <view class="c-row b-b">
        <text class="tit">优惠券</text>
        <text class="con t-r red">领取优惠券</text>
        <text class="yticon icon-you"></text>
      </view>
      <view class="c-row b-b">
        <text class="tit">促销活动</text>
        <view class="con-list">
          <text>新人首单送20元无门槛代金券</text>
          <text>订单满50减10</text>
          <text>订单满100减30</text>
          <text>单笔购买满两件免邮费</text>
        </view>
      </view>
      <view class="c-row b-b">
        <text class="tit">服务</text>
        <view class="bz-list con">
          <text>7天无理由退换货 ·</text>
          <text>假一赔十 ·</text>
        </view>
      </view>
    </view>

    <!-- 评价 -->
    <!-- <view class="eva-section">
      <view class="e-header">
        <text class="tit">评价</text>
        <text>(86)</text>
        <text class="tip">好评率 100%</text>
        <text class="yticon icon-you"></text>
      </view>
      <view class="eva-box">
        <image
          class="portrait"
          src="http://img3.imgtn.bdimg.com/it/u=1150341365,1327279810&fm=26&gp=0.jpg"
          mode="aspectFill"
        ></image>
        <view class="right">
          <text class="name">Leo yo</text>
          <text class="con"
            >商品收到了，79元两件，质量不错，试了一下有点瘦，但是加个外罩很漂亮，我很喜欢</text
          >
          <view class="bot">
            <text class="attr">购买类型：XL 红色</text>
            <text class="time">2019-04-01 19:21</text>
          </view>
        </view>
      </view>
    </view> -->

    <view class="detail-desc">
      <view class="d-header">
        <text>图文详情</text>
      </view>
      <rich-text :nodes="goods.content"></rich-text>
    </view>

    <!-- 底部操作菜单 -->
    <view class="page-bottom" v-if="loading">
      <navigator url="/pages/index/index" open-type="switchTab" class="p-b-btn">
        <text class="yticon icon-xiatubiao--copy"></text>
        <text>首页</text>
      </navigator>

      <uni-badge :text="cartCount" class="uni-badge-left-margin" absolute="rightTop" v-if="cartCount > 0">
        <navigator url="/pages/cart/cart" open-type="switchTab" class="p-b-btn">
          <text class="yticon icon-gouwuche"></text>
          <text>购物车</text>
        </navigator>
      </uni-badge>
      <navigator url="/pages/cart/cart" open-type="switchTab" class="p-b-btn" v-else>
        <text class="yticon icon-gouwuche"></text>
        <text>购物车</text>
      </navigator>


      <view class="p-b-btn" :class="{ active: favorite }" @click="toFavorite">
        <text class="yticon icon-shoucang"></text>
        <text>收藏</text>
      </view>

      <view class="action-btn-group" v-if="curSelectSku.stock > 0">
        <button type="primary" class="action-btn no-border buy-now-btn" @click="buy">
          立即购买
        </button>
        <button type="primary" class="action-btn no-border add-cart-btn" @click="addCart()">
          加入购物车
        </button>
      </view>
      <view class="action-btn-group no-stock" style="width: 192px; background: #d5d5d6" v-if="curSelectSku.stock <= 0">
        <button type="primary" class="action-btn no-border add-cart-btn">
          库存不足
        </button>
      </view>
    </view>
    <!-- 规格-模态层弹窗 -->
    <view class="popup spec" :class="specClass" @touchmove.stop.prevent="stopPrevent" @click="toggleSpec">
      <!-- 遮罩层 -->
      <view class="mask"></view>
      <view class="layer attr-content" @click.stop="stopPrevent">
        <view class="a-t">
          <image :src="curSelectSku.image ? curSelectSku.image : goods.main_image"></image>
          <view class="right">
            <text class="price">¥{{ curSelectSku.price }}</text>
            <text class="stock">库存：{{ curSelectSku.stock }}件</text>
            <view class="selected">
              已选：
              <text class="selected-text" v-for="(sItem, sIndex) in specSelected" :key="sIndex">
                {{ sItem.name }}
              </text>
            </view>
          </view>
        </view>
        <view v-for="(item, index) in specList" :key="index" class="attr-list">
          <text>{{ item.name }}</text>
          <view class="item-list">
            <text v-for="(childItem, childIndex) in specChildList" v-if="childItem.pid === item.id" :key="childIndex"
              class="tit" :class="{ selected: childItem.selected }" @click="selectSpec(childIndex, childItem.pid)">
              {{ childItem.name }}
            </text>
          </view>
        </view>
        <button class="btn" style="background: #d5d5d6" v-if="curSelectSku.stock <= 0">
          库存不足
        </button>
        <button class="btn" v-if="curSelectSku.stock > 0" @click="toggleSpec">
          完成
        </button>
      </view>
    </view>
    <!-- 分享 -->
    <share ref="share" :contentHeight="580" :shareList="shareList"></share>
  </view>
</template>

<script>
import share from "@/components/share";
export default {
  components: {
    share,
  },
  data() {
    return {
      loading: false,
      specClass: "none",
      goods: {}, //当前商品信息
      curSelectSku: {}, //当前选中的sku
      goodsSku: [], //该商品所有的sku
      specSelected: [], //当前选中是spec规格
      cartCount: 0, //购物车数量
      options: {},

      favorite: true,
      shareList: [],
      specList: [],
      specChildList: [],
    };
  },

  async onLoad(options) {
    uni.showLoading({
      title: "加载中",
      mask: true,
    });
    this.options = options;
    let id = options.id;
    await this.loadGoodsDetail(id);
    await this.loadCartCount();
    this.shareList = await this.$api.json("shareList");
    uni.hideLoading();
    this.loading = true;
    this.$http.goods.addGoodsBrowse({ goods_id: id })

  },
  methods: {
    async loadCartCount() {
      const { data } = await this.$http.cart.count({ goods_id: this.options.id })
      this.cartCount = data
    },
    async loadGoodsDetail(id) {
      const { data } = await this.$http.goods.goodsDetail({ id: id });
      this.goods = data;
      this.goodsSku = data.goodssku || [];
      if (data.spec == 2) {
        this.specList = data.goodsspec.spec.map((r) => {
          r.item.forEach((v) => {
            this.specChildList.push({
              id: v,
              pid: r.title,
              name: v,
            });
          });
          return {
            id: r.title,
            name: r.title,
          };
        });
        this.selectFirstSku();
      } else {
        //单规格商品直接是第1个sku
        this.curSelectSku = this.goodsSku[0];
      }

      this.favorite = data.is_collect;

    },
    setCurSelectSku() {
      const curSkuKey = this.specSelected.map((r) => r.id).join("※");
      const sku = this.goodsSku.find((r) => r.sku_name == curSkuKey);
      this.curSelectSku = sku;
    },
    //规格 默认选中第一条
    selectFirstSku() {
      //规格 默认选中第一条
      this.specList.forEach((item) => {
        for (let cItem of this.specChildList) {
          if (cItem.pid === item.id) {
            this.$set(cItem, "selected", true);
            this.specSelected.push(cItem);
            break; //forEach不能使用break
          }
        }
      });
      // console.log(`this.specList`, this.specList);
      // console.log(`this.specChildList`, this.specChildList);
      // console.log(`this.specSelected`, this.specSelected);
      this.setCurSelectSku();
    },
    async addCart() {
      const curSku = this.curSelectSku;
      await this.$http.cart.addCart({
        goods_id: curSku.goods_id,
        sku_id: curSku.sku_id,
        sku_name: curSku.sku_name,
        num: 1,
      });
      this.$toast("添加购物车成功");
      await this.loadCartCount();
    },
    //规格弹窗开关
    toggleSpec() {
      if (this.specClass === "show") {
        this.specClass = "hide";
        setTimeout(() => {
          this.specClass = "none";
        }, 250);
      } else if (this.specClass === "none") {
        this.specClass = "show";
      }
    },
    //选择规格
    selectSpec(index, pid) {
      let list = this.specChildList;
      list.forEach((item) => {
        if (item.pid === pid) {
          this.$set(item, "selected", false);
        }
      });

      this.$set(list[index], "selected", true);
      //存储已选择
      /**
       * 修复选择规格存储错误
       * 将这几行代码替换即可
       * 选择的规格存放在specSelected中
       */
      this.specSelected = [];
      list.forEach((item) => {
        if (item.selected === true) {
          this.specSelected.push(item);
        }
      });
      this.setCurSelectSku();
    },
    //分享
    share() {
      this.$refs.share.toggleMask();
    },
    //收藏
    async toFavorite() {
      if (this.favorite) {
        await this.$http.goods.unCollectGoods({
          goods_id: this.curSelectSku.goods_id
        })
      } else {
        await this.$http.goods.collectGoods({
          goods_id: this.curSelectSku.goods_id
        })
      }
      this.favorite = !this.favorite;
    },
    buy() {
      uni.navigateTo({
        url: `/pages/order/createOrder?goods_id=${this.curSelectSku.goods_id}&sku_id=${this.curSelectSku.sku_id}`,
      });
    },
    stopPrevent() { },
  },
};
</script>

<style lang="scss">
page {
  background: $page-color-base;
  padding-bottom: 160upx;
}
//处理图文详情p标签默认行高问题
.detail-desc p img {
  display: block;
  margin: 0;
  max-width: 100%;
  height: auto;
}

.detail-desc table {
  border-collapse: collapse;
  border: 1px solid #ddd;
}
 
.detail-desc table th,
.detail-desc table td {
  border: 1px solid #ddd;
  padding: 8px;
}



.icon-you {
  font-size: $font-base + 2upx;
  color: #888;
}

.carousel {
  height: 722upx;
  position: relative;

  swiper {
    height: 100%;
  }

  .image-wrapper {
    width: 100%;
    height: 100%;
  }

  .swiper-item {
    display: flex;
    justify-content: center;
    align-content: center;
    height: 750upx;
    overflow: hidden;

    image {
      width: 100%;
      height: 100%;
    }
  }
}

/* 标题简介 */
.introduce-section {
  background: #fff;
  padding: 20upx 30upx;

  .title {
    font-size: 32upx;
    color: $font-color-dark;
    height: 50upx;
    line-height: 50upx;
  }

  .price-box {
    display: flex;
    align-items: baseline;
    height: 64upx;
    padding: 10upx 0;
    font-size: 26upx;
    color: $uni-color-primary;
  }

  .price {
    font-size: $font-lg + 2upx;
  }

  .m-price {
    margin: 0 12upx;
    color: $font-color-light;
    text-decoration: line-through;
  }

  .coupon-tip {
    align-items: center;
    padding: 4upx 10upx;
    background: $uni-color-primary;
    font-size: $font-sm;
    color: #fff;
    border-radius: 6upx;
    line-height: 1;
    transform: translateY(-4upx);
  }

  .bot-row {
    display: flex;
    align-items: center;
    height: 50upx;
    font-size: $font-sm;
    color: $font-color-light;

    text {
      flex: 1;
    }
  }
}

/* 分享 */
.share-section {
  display: flex;
  align-items: center;
  color: $font-color-base;
  background: linear-gradient(left, #fdf5f6, #fbebf6);
  padding: 12upx 30upx;

  .share-icon {
    display: flex;
    align-items: center;
    width: 70upx;
    height: 30upx;
    line-height: 1;
    border: 1px solid $uni-color-primary;
    border-radius: 4upx;
    position: relative;
    overflow: hidden;
    font-size: 22upx;
    color: $uni-color-primary;

    &:after {
      content: "";
      width: 50upx;
      height: 50upx;
      border-radius: 50%;
      left: -20upx;
      top: -12upx;
      position: absolute;
      background: $uni-color-primary;
    }
  }

  .icon-xingxing {
    position: relative;
    z-index: 1;
    font-size: 24upx;
    margin-left: 2upx;
    margin-right: 10upx;
    color: #fff;
    line-height: 1;
  }

  .tit {
    font-size: $font-base;
    margin-left: 10upx;
  }

  .icon-bangzhu1 {
    padding: 10upx;
    font-size: 30upx;
    line-height: 1;
  }

  .share-btn {
    flex: 1;
    text-align: right;
    font-size: $font-sm;
    color: $uni-color-primary;
  }

  .icon-you {
    font-size: $font-sm;
    margin-left: 4upx;
    color: $uni-color-primary;
  }
}

.c-list {
  font-size: $font-sm + 2upx;
  color: $font-color-base;
  background: #fff;

  .c-row {
    display: flex;
    align-items: center;
    padding: 20upx 30upx;
    position: relative;
  }

  .tit {
    width: 140upx;
  }

  .con {
    flex: 1;
    color: $font-color-dark;

    .selected-text {
      margin-right: 10upx;
    }
  }

  .bz-list {
    height: 40upx;
    font-size: $font-sm + 2upx;
    color: $font-color-dark;

    text {
      display: inline-block;
      margin-right: 30upx;
    }
  }

  .con-list {
    flex: 1;
    display: flex;
    flex-direction: column;
    color: $font-color-dark;
    line-height: 40upx;
  }

  .red {
    color: $uni-color-primary;
  }
}

/* 评价 */
.eva-section {
  display: flex;
  flex-direction: column;
  padding: 20upx 30upx;
  background: #fff;
  margin-top: 16upx;

  .e-header {
    display: flex;
    align-items: center;
    height: 70upx;
    font-size: $font-sm + 2upx;
    color: $font-color-light;

    .tit {
      font-size: $font-base + 2upx;
      color: $font-color-dark;
      margin-right: 4upx;
    }

    .tip {
      flex: 1;
      text-align: right;
    }

    .icon-you {
      margin-left: 10upx;
    }
  }
}

.eva-box {
  display: flex;
  padding: 20upx 0;

  .portrait {
    flex-shrink: 0;
    width: 80upx;
    height: 80upx;
    border-radius: 100px;
  }

  .right {
    flex: 1;
    display: flex;
    flex-direction: column;
    font-size: $font-base;
    color: $font-color-base;
    padding-left: 26upx;

    .con {
      font-size: $font-base;
      color: $font-color-dark;
      padding: 20upx 0;
    }

    .bot {
      display: flex;
      justify-content: space-between;
      font-size: $font-sm;
      color: $font-color-light;
    }
  }
}

/*  详情 */
.detail-desc {
  background: #fff;
  margin-top: 16upx;

  .d-header {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 80upx;
    font-size: $font-base + 2upx;
    color: $font-color-dark;
    position: relative;

    text {
      padding: 0 20upx;
      background: #fff;
      position: relative;
      z-index: 1;
    }

    &:after {
      position: absolute;
      left: 50%;
      top: 50%;
      transform: translateX(-50%);
      width: 300upx;
      height: 0;
      content: "";
      border-bottom: 1px solid #ccc;
    }
  }
}

/* 规格选择弹窗 */
.attr-content {
  padding: 10upx 30upx;

  .a-t {
    display: flex;

    image {
      width: 170upx;
      height: 170upx;
      flex-shrink: 0;
      margin-top: -40upx;
      border-radius: 8upx;
    }

    .right {
      display: flex;
      flex-direction: column;
      padding-left: 24upx;
      font-size: $font-sm + 2upx;
      color: $font-color-base;
      line-height: 42upx;

      .price {
        font-size: $font-lg;
        color: $uni-color-primary;
        margin-bottom: 10upx;
      }

      .selected-text {
        margin-right: 10upx;
      }
    }
  }

  .attr-list {
    display: flex;
    flex-direction: column;
    font-size: $font-base + 2upx;
    color: $font-color-base;
    padding-top: 30upx;
    padding-left: 10upx;
  }

  .item-list {
    padding: 20upx 0 0;
    display: flex;
    flex-wrap: wrap;

    text {
      display: flex;
      align-items: center;
      justify-content: center;
      background: #eee;
      margin-right: 20upx;
      margin-bottom: 20upx;
      border-radius: 100upx;
      min-width: 60upx;
      height: 60upx;
      padding: 0 20upx;
      font-size: $font-base;
      color: $font-color-dark;
    }

    .selected {
      background: #fbebee;
      color: $uni-color-primary;
    }
  }
}

/*  弹出层 */
.popup {
  position: fixed;
  left: 0;
  top: 0;
  right: 0;
  bottom: 0;
  z-index: 99;

  &.show {
    display: block;

    .mask {
      animation: showPopup 0.2s linear both;
    }

    .layer {
      animation: showLayer 0.2s linear both;
    }
  }

  &.hide {
    .mask {
      animation: hidePopup 0.2s linear both;
    }

    .layer {
      animation: hideLayer 0.2s linear both;
    }
  }

  &.none {
    display: none;
  }

  .mask {
    position: fixed;
    top: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    background-color: rgba(0, 0, 0, 0.4);
  }

  .layer {
    position: fixed;
    z-index: 99;
    bottom: 0;
    width: 100%;
    min-height: 40vh;
    border-radius: 10upx 10upx 0 0;
    background-color: #fff;

    .btn {
      height: 66upx;
      line-height: 66upx;
      border-radius: 100upx;
      background: $uni-color-primary;
      font-size: $font-base + 2upx;
      color: #fff;
      margin: 30upx auto 20upx;
    }
  }

  @keyframes showPopup {
    0% {
      opacity: 0;
    }

    100% {
      opacity: 1;
    }
  }

  @keyframes hidePopup {
    0% {
      opacity: 1;
    }

    100% {
      opacity: 0;
    }
  }

  @keyframes showLayer {
    0% {
      transform: translateY(120%);
    }

    100% {
      transform: translateY(0%);
    }
  }

  @keyframes hideLayer {
    0% {
      transform: translateY(0);
    }

    100% {
      transform: translateY(120%);
    }
  }
}

.no-stock:after {
  border-right: none !important;
}

/* 底部操作菜单 */
.page-bottom {
  position: fixed;
  left: 30upx;
  bottom: 30upx;
  z-index: 95;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 690upx;
  height: 100upx;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 0 20upx 0 rgba(0, 0, 0, 0.5);
  border-radius: 16upx;

  .p-b-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-size: $font-sm;
    color: $font-color-base;
    width: 96upx;
    height: 80upx;

    .yticon {
      font-size: 40upx;
      line-height: 48upx;
      color: $font-color-light;
    }

    &.active,
    &.active .yticon {
      color: $uni-color-primary;
    }

    .icon-fenxiang2 {
      font-size: 42upx;
      transform: translateY(-2upx);
    }

    .icon-shoucang {
      font-size: 46upx;
    }
  }

  .action-btn-group {
    display: flex;
    height: 76upx;
    border-radius: 100px;
    overflow: hidden;
    box-shadow: 0 20upx 40upx -16upx #fa436a;
    box-shadow: 1px 2px 5px rgba(219, 63, 96, 0.4);
    background: linear-gradient(to right, #ffac30, #fa436a, #f56c6c);
    margin-left: 20upx;
    position: relative;

    &:after {
      content: "";
      position: absolute;
      top: 50%;
      right: 50%;
      transform: translateY(-50%);
      height: 28upx;
      width: 0;
      border-right: 1px solid rgba(255, 255, 255, 0.5);
    }

    .action-btn {
      display: flex;
      align-items: center;
      justify-content: center;
      width: 180upx;
      height: 100%;
      font-size: $font-base;
      padding: 0;
      border-radius: 0;
      background: transparent;
    }
  }
}
</style>
